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Minimal RBS Assemblies

This page will document some minimal configurations of ericsson parts that need to be combined to create a working BTS.

Option "A" (remote radio heads)

This is a configuration where we have a 2U rackmount unit indoor hosting the digital side (DUx) and one or multiple remote radio heads (RRUS) which are located outdoor at some height of the antenna pole, preferably as close to the antenna (RF cable loss) but taking into consideratoin the ~23kg load and wind load.

Parts list

Qty Model Part Description
1 DUG 20 01 KDU 137 569/x Digital (baseband) unit for GSM
1 DUL 20 01 KDU 137 533/x Digital (baseband) unit for LTE
1 RBS6601 cabinet BFL 901 009 2U rackmount enclosure hosting DUL + DUG (Variant 1 or 2; have different DC connector)
2 RPM 777 193 RPM 777 193/00160 DC power cable between cabinet and DUG/DUL
1 1060550000 Variant 2 RBS6601 cabinet 48V DC power connector housing for Variant 2
1 42816-0212 Variant 1 housing RBS6601 cabinet 48V DC power connector housing for Variant 1
2 42816-0212 Variant 1 contact RBS6601 cabinet 48V DC power connector contact for Variant 1
1 - - DC power supply for DUx (-40.0V to -58.5V, absolute maximum of 1xDUL + 1xDUG = 190W)
1 RRUS xx Remote Radio Unit (see below)
1 DC power connector on RRUS side (maybe just screw terminals?)
1 DC power supply for RRUS (or "PSU AC" option for AC mains connection)
1 - - Grounding cable with cable lug for M8 bolt
4 RDH 102 47/2 SFP-Transceivers (1x DUG, 1x DUL, 2x RRUS). 2.5Gbps CPRI line rate should be sufficient
2 Duplex LC fiber patch cables (1x DUG-RRUS, 1x DUL-RRUS) compatible with transceivers

Compatible Remote Radios

Please see RRUS about a general description of the various Remote Radio Units.

The important fact here is:
  • RRUS 11/61 cannot be used (no GSM support)
Model Band Part GSM Carriers LTE Carriers Instantaneous BW
RRUS 01 B5 KRC 118 70/x 1-4 (total) 1-4 (total) 20 MHz
RRUS 01 B8 KRC 118 71/x 1-4 (total) 1-4 (total) 20 MHz
RRUS 02 B0 KRC 161 264/x 1-8 1-4 40 MHz
RRUS 02 B8 KRC 161 261/x 1-8 1-4 40 MHz
RRUS 12 B5 KRC 161 321/x 1-8 1-2 40 MHz
RRUS 12 B8 KRC 161 262/x 1-8 1-2 40 MHz
RRUS 13 1-8 1-3
RRUS 14 1-8 1-3
RRUS 32

Option "B" (classic radios)

This is a more classic deployment where a RUS (non-remote radio unit) is used instead of a RRUS.
on the positive side:
  • they are much cheaper
  • they are much more frequently found
on the negative side:
  • they require some amount of active cooling
  • the only official Ericsson racks are large (for 6 RUS equalling something like 2xRUS per sector of a 3-sector site)


h3. Parts list

Qty Model Part Description
1 DUG 20 01 KDU 137 569/x Digital (baseband) unit for GSM
1 DUL 20 01 KDU 137 533/x Digital (baseband) unit for LTE
1 RBS6202 cabinet BFM 901 351 19" sub-rack for 2 DU + 6 RU
2 ? ? DC power cable between cabinet and DUG/DUL
1 - - DC power supply (-40.0V to -58.5V, absolute maximum of 1xDUL + 1xDUG + 1xRUS = 190W)
1 RUS xx Radio Unit (see below)
1 ? ? DC power cable between cabinet and RUS
1 RPM 777 211/00900 CPRI cable between RUS and DUG/DUL (/900 = 90cm, diffeent lengths available)

Compatible Radios

Please see RUS about a general description of the various Remote Radio Units.

Model Band Part GSM Carriers LTE Carriers Instantaneous BW
RUS 01 B0 KRC 118 63/x 1-4 1-4 20 MHz
RUS 01 B5 KRC 118 64/x 1-4 1-4 20 MHz
RUS 01 B8 KRC 118 62/x 1-4 1-4 20 MHz
RUS 02 B0 KRC 161 263/x 1-8 1-4 40 MHz
RUS 02 B5 KRC 161 320/x 1-8 1-4 40 MHz
RUS 02 B8 KRC 161 260/x 1-8 1-4 40 MHz
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